STATE ROUTE 163
STATE ROUTE 163 in 11-Sd-163-5.79-Sd, San Diego County, California received a condition grade of B (68/100). Built in 1956, the bridge carries 148K vehicles daily on STATE ROUTE 163 over Genesee AVE.
STATE ROUTE 163 carries a B on the BridgeSafety Condition Score with 68/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1956 and is now 70 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. STATE ROUTE 163 carries an average daily traffic count of 148,000 vehicles, with 10 lane(s) crossing Genesee AVE. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
STATE ROUTE 163 is a 70-year-old bridge located 11-Sd-163-5.79-Sd in San Diego County, California. The bridge carries STATE ROUTE 163 over Genesee AVE with 10 traffic lanes, handling approximately 148K vehicles per day. Built in 1956 and reconstructed in 1970, the structure spans 49.1 meters.
The bridge received a Condition Grade of B (68/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
STATE ROUTE 163 has a Condition Score of 68/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
STATE ROUTE 163 was built in 1956 and reconstructed in 1970, making it 70 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 163 carries approximately 148K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 49.1 meters long and located on STATE ROUTE 163 in 11-Sd-163-5.79-Sd, San Diego County, California.
No, STATE ROUTE 163 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
STATE ROUTE 163 is located 11-Sd-163-5.79-Sd in San Diego County, California. The bridge carries STATE ROUTE 163 over Genesee AVE. Its coordinates are 32.791619, -117.158739. It is maintained by State Highway Agency.
STATE ROUTE 163 carries STATE ROUTE 163 over Genesee AVE. The bridge is 49.1 meters long and was built in 1956, with reconstruction in 1970.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.